<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>form 练习</title>
</head>
<body>
    <form action="http://edu.couchpotato.fun/studentForm" method="POST">
        用户名:<input type="text" name="user_name">
        性别:
        <label><input type="radio" name="user_sex" value="男">男</label>
        <label><input type="radio" name="user_sex" value="女">女</label>
        <input type="submit" value="提交">
    </form>
</body>
</html>